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Finding the Fourth Proportional to 357,802.38, 536,703.12 and 91,562.98

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Solution

The fourth proportional to 357,802.38, 536,703.12 and 91,562.98 is: 137,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,802.38 : 536,703.12 = 91,562.98 : x
  2. Step 2: Convert to fraction form
    357,802.38/536,703.12 = 91,562.98/x
  3. Step 3: Cross multiply
    357,802.38x = 536,703.12 × 91,562.98
  4. Step 4: Simplify right side
    357,802.38x = 49,142,137,042.50
  5. Step 5: Solve for x
    x = 49,142,137,042.50/357,802.38
  6. Step 6: Final answer
    x = 137,344.35

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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.