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Finding the Fourth Proportional to 125,088.93, 187,643.72 and 40,847.22

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Solution

The fourth proportional to 125,088.93, 187,643.72 and 40,847.22 is: 61,274.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,088.93 : 187,643.72 = 40,847.22 : x
  2. Step 2: Convert to fraction form
    125,088.93/187,643.72 = 40,847.22/x
  3. Step 3: Cross multiply
    125,088.93x = 187,643.72 × 40,847.22
  4. Step 4: Simplify right side
    125,088.93x = 7,664,724,108.22
  5. Step 5: Solve for x
    x = 7,664,724,108.22/125,088.93
  6. Step 6: Final answer
    x = 61,274.20

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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.