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Finding the Fourth Proportional to 292,374.79, 438,577.72 and 92,710.91

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Solution

The fourth proportional to 292,374.79, 438,577.72 and 92,710.91 is: 139,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,374.79 : 438,577.72 = 92,710.91 : x
  2. Step 2: Convert to fraction form
    292,374.79/438,577.72 = 92,710.91/x
  3. Step 3: Cross multiply
    292,374.79x = 438,577.72 × 92,710.91
  4. Step 4: Simplify right side
    292,374.79x = 40,660,940,391.59
  5. Step 5: Solve for x
    x = 40,660,940,391.59/292,374.79
  6. Step 6: Final answer
    x = 139,071.30

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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.