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Finding the Fourth Proportional to 176,405.96, 243,460.10 and 99,930.28

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Solution

The fourth proportional to 176,405.96, 243,460.10 and 99,930.28 is: 137,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,405.96 : 243,460.10 = 99,930.28 : x
  2. Step 2: Convert to fraction form
    176,405.96/243,460.10 = 99,930.28/x
  3. Step 3: Cross multiply
    176,405.96x = 243,460.10 × 99,930.28
  4. Step 4: Simplify right side
    176,405.96x = 24,329,035,961.83
  5. Step 5: Solve for x
    x = 24,329,035,961.83/176,405.96
  6. Step 6: Final answer
    x = 137,915.05

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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.