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Finding the Fourth Proportional to 292,545.52, 438,818.30 and 70,929.52

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Solution

The fourth proportional to 292,545.52, 438,818.30 and 70,929.52 is: 106,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,545.52 : 438,818.30 = 70,929.52 : x
  2. Step 2: Convert to fraction form
    292,545.52/438,818.30 = 70,929.52/x
  3. Step 3: Cross multiply
    292,545.52x = 438,818.30 × 70,929.52
  4. Step 4: Simplify right side
    292,545.52x = 31,125,171,386.22
  5. Step 5: Solve for x
    x = 31,125,171,386.22/292,545.52
  6. Step 6: Final answer
    x = 106,394.28

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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.