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Finding the Fourth Proportional to 84,776.55, 127,158.95 and 25,612.53

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Solution

The fourth proportional to 84,776.55, 127,158.95 and 25,612.53 is: 38,417.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,776.55 : 127,158.95 = 25,612.53 : x
  2. Step 2: Convert to fraction form
    84,776.55/127,158.95 = 25,612.53/x
  3. Step 3: Cross multiply
    84,776.55x = 127,158.95 × 25,612.53
  4. Step 4: Simplify right side
    84,776.55x = 3,256,861,657.79
  5. Step 5: Solve for x
    x = 3,256,861,657.79/84,776.55
  6. Step 6: Final answer
    x = 38,417.01

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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.