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Finding the Fourth Proportional to 487,762.45, 731,569.80 and 132,804.43

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Solution

The fourth proportional to 487,762.45, 731,569.80 and 132,804.43 is: 199,186.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,762.45 : 731,569.80 = 132,804.43 : x
  2. Step 2: Convert to fraction form
    487,762.45/731,569.80 = 132,804.43/x
  3. Step 3: Cross multiply
    487,762.45x = 731,569.80 × 132,804.43
  4. Step 4: Simplify right side
    487,762.45x = 97,155,710,294.21
  5. Step 5: Solve for x
    x = 97,155,710,294.21/487,762.45
  6. Step 6: Final answer
    x = 199,186.53

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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.