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Finding the Fourth Proportional to 125,437.52, 173,184.88 and 77,741.52

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Solution

The fourth proportional to 125,437.52, 173,184.88 and 77,741.52 is: 107,333.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,437.52 : 173,184.88 = 77,741.52 : x
  2. Step 2: Convert to fraction form
    125,437.52/173,184.88 = 77,741.52/x
  3. Step 3: Cross multiply
    125,437.52x = 173,184.88 × 77,741.52
  4. Step 4: Simplify right side
    125,437.52x = 13,463,655,812.22
  5. Step 5: Solve for x
    x = 13,463,655,812.22/125,437.52
  6. Step 6: Final answer
    x = 107,333.56

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1.5x scale

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.