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Finding the Fourth Proportional to 64,700,958.40, 97,051,437.60 and 30,688,734.40

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Solution

The fourth proportional to 64,700,958.40, 97,051,437.60 and 30,688,734.40 is: 46,033,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,700,958.40 : 97,051,437.60 = 30,688,734.40 : x
  2. Step 2: Convert to fraction form
    64,700,958.40/97,051,437.60 = 30,688,734.40/x
  3. Step 3: Cross multiply
    64,700,958.40x = 97,051,437.60 × 30,688,734.40
  4. Step 4: Simplify right side
    64,700,958.40x = 2,978,385,791,644,573
  5. Step 5: Solve for x
    x = 2,978,385,791,644,573/64,700,958.40
  6. Step 6: Final answer
    x = 46,033,101.60

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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.