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Finding the Fourth Proportional to 176,615.76, 243,736.15 and 101,178.84

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Solution

The fourth proportional to 176,615.76, 243,736.15 and 101,178.84 is: 139,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,615.76 : 243,736.15 = 101,178.84 : x
  2. Step 2: Convert to fraction form
    176,615.76/243,736.15 = 101,178.84/x
  3. Step 3: Cross multiply
    176,615.76x = 243,736.15 × 101,178.84
  4. Step 4: Simplify right side
    176,615.76x = 24,660,940,417.17
  5. Step 5: Solve for x
    x = 24,660,940,417.17/176,615.76
  6. Step 6: Final answer
    x = 139,630.46

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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.