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Finding the Fourth Proportional to 106,857,603.60, 160,286,405.40 and 100,905,464.40

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Solution

The fourth proportional to 106,857,603.60, 160,286,405.40 and 100,905,464.40 is: 151,358,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,857,603.60 : 160,286,405.40 = 100,905,464.40 : x
  2. Step 2: Convert to fraction form
    106,857,603.60/160,286,405.40 = 100,905,464.40/x
  3. Step 3: Cross multiply
    106,857,603.60x = 160,286,405.40 × 100,905,464.40
  4. Step 4: Simplify right side
    106,857,603.60x = 16,173,774,173,893,670
  5. Step 5: Solve for x
    x = 16,173,774,173,893,670/106,857,603.60
  6. Step 6: Final answer
    x = 151,358,196.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.