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Finding the Fourth Proportional to 502,688.84, 754,088.67 and 147,730.50

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Solution

The fourth proportional to 502,688.84, 754,088.67 and 147,730.50 is: 221,612.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,688.84 : 754,088.67 = 147,730.50 : x
  2. Step 2: Convert to fraction form
    502,688.84/754,088.67 = 147,730.50/x
  3. Step 3: Cross multiply
    502,688.84x = 754,088.67 × 147,730.50
  4. Step 4: Simplify right side
    502,688.84x = 111,401,896,263.44
  5. Step 5: Solve for x
    x = 111,401,896,263.44/502,688.84
  6. Step 6: Final answer
    x = 221,612.04

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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.