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Finding the Fourth Proportional to 358,035.53, 537,013.13 and 91,802.30

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Solution

The fourth proportional to 358,035.53, 537,013.13 and 91,802.30 is: 137,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,035.53 : 537,013.13 = 91,802.30 : x
  2. Step 2: Convert to fraction form
    358,035.53/537,013.13 = 91,802.30/x
  3. Step 3: Cross multiply
    358,035.53x = 537,013.13 × 91,802.30
  4. Step 4: Simplify right side
    358,035.53x = 49,299,037,320.12
  5. Step 5: Solve for x
    x = 49,299,037,320.12/358,035.53
  6. Step 6: Final answer
    x = 137,693.14

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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.