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Finding the Fourth Proportional to 125,023.32, 187,541.02 and 40,783.32

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Solution

The fourth proportional to 125,023.32, 187,541.02 and 40,783.32 is: 61,176.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,023.32 : 187,541.02 = 40,783.32 : x
  2. Step 2: Convert to fraction form
    125,023.32/187,541.02 = 40,783.32/x
  3. Step 3: Cross multiply
    125,023.32x = 187,541.02 × 40,783.32
  4. Step 4: Simplify right side
    125,023.32x = 7,648,545,482.77
  5. Step 5: Solve for x
    x = 7,648,545,482.77/125,023.32
  6. Step 6: Final answer
    x = 61,176.95

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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.