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Finding the Fourth Proportional to 92,331.71, 127,389.43 and 56,484.35

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Solution

The fourth proportional to 92,331.71, 127,389.43 and 56,484.35 is: 77,931.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,331.71 : 127,389.43 = 56,484.35 : x
  2. Step 2: Convert to fraction form
    92,331.71/127,389.43 = 56,484.35/x
  3. Step 3: Cross multiply
    92,331.71x = 127,389.43 × 56,484.35
  4. Step 4: Simplify right side
    92,331.71x = 7,195,509,150.42
  5. Step 5: Solve for x
    x = 7,195,509,150.42/92,331.71
  6. Step 6: Final answer
    x = 77,931.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.