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Finding the Fourth Proportional to 99,908.10, 149,862.15 and 60,444.90

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Solution

The fourth proportional to 99,908.10, 149,862.15 and 60,444.90 is: 90,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.10 : 149,862.15 = 60,444.90 : x
  2. Step 2: Convert to fraction form
    99,908.10/149,862.15 = 60,444.90/x
  3. Step 3: Cross multiply
    99,908.10x = 149,862.15 × 60,444.90
  4. Step 4: Simplify right side
    99,908.10x = 9,058,402,670.54
  5. Step 5: Solve for x
    x = 9,058,402,670.54/99,908.10
  6. Step 6: Final answer
    x = 90,667.35

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1.5x scale

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.