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Finding the Fourth Proportional to 176,643.67, 243,763.05 and 100,169.74

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Solution

The fourth proportional to 176,643.67, 243,763.05 and 100,169.74 is: 138,231.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,643.67 : 243,763.05 = 100,169.74 : x
  2. Step 2: Convert to fraction form
    176,643.67/243,763.05 = 100,169.74/x
  3. Step 3: Cross multiply
    176,643.67x = 243,763.05 × 100,169.74
  4. Step 4: Simplify right side
    176,643.67x = 24,417,681,340.11
  5. Step 5: Solve for x
    x = 24,417,681,340.11/176,643.67
  6. Step 6: Final answer
    x = 138,231.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.