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Finding the Fourth Proportional to 127,673.79, 191,479.92 and 56,557.10

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Solution

The fourth proportional to 127,673.79, 191,479.92 and 56,557.10 is: 84,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,673.79 : 191,479.92 = 56,557.10 : x
  2. Step 2: Convert to fraction form
    127,673.79/191,479.92 = 56,557.10/x
  3. Step 3: Cross multiply
    127,673.79x = 191,479.92 × 56,557.10
  4. Step 4: Simplify right side
    127,673.79x = 10,829,549,250.04
  5. Step 5: Solve for x
    x = 10,829,549,250.04/127,673.79
  6. Step 6: Final answer
    x = 84,822.03

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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.