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Finding the Fourth Proportional to 99,422.88, 137,203.59 and 54,710.88

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Solution

The fourth proportional to 99,422.88, 137,203.59 and 54,710.88 is: 75,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,422.88 : 137,203.59 = 54,710.88 : x
  2. Step 2: Convert to fraction form
    99,422.88/137,203.59 = 54,710.88/x
  3. Step 3: Cross multiply
    99,422.88x = 137,203.59 × 54,710.88
  4. Step 4: Simplify right side
    99,422.88x = 7,506,529,148.06
  5. Step 5: Solve for x
    x = 7,506,529,148.06/99,422.88
  6. Step 6: Final answer
    x = 75,501.02

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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.