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Finding the Fourth Proportional to 125,153.63, 187,674.35 and 74,576.46

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Solution

The fourth proportional to 125,153.63, 187,674.35 and 74,576.46 is: 111,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,153.63 : 187,674.35 = 74,576.46 : x
  2. Step 2: Convert to fraction form
    125,153.63/187,674.35 = 74,576.46/x
  3. Step 3: Cross multiply
    125,153.63x = 187,674.35 × 74,576.46
  4. Step 4: Simplify right side
    125,153.63x = 13,996,088,282.92
  5. Step 5: Solve for x
    x = 13,996,088,282.92/125,153.63
  6. Step 6: Final answer
    x = 111,831.27

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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.