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Finding the Fourth Proportional to 160,368, 240,441.12 and 115,416.96

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Solution

The fourth proportional to 160,368, 240,441.12 and 115,416.96 is: 173,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,368 : 240,441.12 = 115,416.96 : x
  2. Step 2: Convert to fraction form
    160,368/240,441.12 = 115,416.96/x
  3. Step 3: Cross multiply
    160,368x = 240,441.12 × 115,416.96
  4. Step 4: Simplify right side
    160,368x = 27,750,983,129.40
  5. Step 5: Solve for x
    x = 27,750,983,129.40/160,368
  6. Step 6: Final answer
    x = 173,045.64

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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.