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Finding the Fourth Proportional to 225,465.76, 338,254.80 and 67,690.72

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Solution

The fourth proportional to 225,465.76, 338,254.80 and 67,690.72 is: 101,552.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,465.76 : 338,254.80 = 67,690.72 : x
  2. Step 2: Convert to fraction form
    225,465.76/338,254.80 = 67,690.72/x
  3. Step 3: Cross multiply
    225,465.76x = 338,254.80 × 67,690.72
  4. Step 4: Simplify right side
    225,465.76x = 22,896,710,955.46
  5. Step 5: Solve for x
    x = 22,896,710,955.46/225,465.76
  6. Step 6: Final answer
    x = 101,552.94

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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.