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Finding the Fourth Proportional to 124,595.76, 171,947.76 and 70,166.64

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Solution

The fourth proportional to 124,595.76, 171,947.76 and 70,166.64 is: 96,833.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,595.76 : 171,947.76 = 70,166.64 : x
  2. Step 2: Convert to fraction form
    124,595.76/171,947.76 = 70,166.64/x
  3. Step 3: Cross multiply
    124,595.76x = 171,947.76 × 70,166.64
  4. Step 4: Simplify right side
    124,595.76x = 12,064,996,574.73
  5. Step 5: Solve for x
    x = 12,064,996,574.73/124,595.76
  6. Step 6: Final answer
    x = 96,833.12

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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.