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Finding the Fourth Proportional to 133,387.52, 184,073.76 and 72,957.92

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Solution

The fourth proportional to 133,387.52, 184,073.76 and 72,957.92 is: 100,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,387.52 : 184,073.76 = 72,957.92 : x
  2. Step 2: Convert to fraction form
    133,387.52/184,073.76 = 72,957.92/x
  3. Step 3: Cross multiply
    133,387.52x = 184,073.76 × 72,957.92
  4. Step 4: Simplify right side
    133,387.52x = 13,429,638,656.18
  5. Step 5: Solve for x
    x = 13,429,638,656.18/133,387.52
  6. Step 6: Final answer
    x = 100,681.37

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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.