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Finding the Fourth Proportional to 424,572.94, 636,838.58 and 158,312.62

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Solution

The fourth proportional to 424,572.94, 636,838.58 and 158,312.62 is: 237,461.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,572.94 : 636,838.58 = 158,312.62 : x
  2. Step 2: Convert to fraction form
    424,572.94/636,838.58 = 158,312.62/x
  3. Step 3: Cross multiply
    424,572.94x = 636,838.58 × 158,312.62
  4. Step 4: Simplify right side
    424,572.94x = 100,819,580,141.12
  5. Step 5: Solve for x
    x = 100,819,580,141.12/424,572.94
  6. Step 6: Final answer
    x = 237,461.16

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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.