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Finding the Fourth Proportional to 76,569.60, 105,658.56 and 43,034.88

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Solution

The fourth proportional to 76,569.60, 105,658.56 and 43,034.88 is: 59,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,569.60 : 105,658.56 = 43,034.88 : x
  2. Step 2: Convert to fraction form
    76,569.60/105,658.56 = 43,034.88/x
  3. Step 3: Cross multiply
    76,569.60x = 105,658.56 × 43,034.88
  4. Step 4: Simplify right side
    76,569.60x = 4,547,003,450.57
  5. Step 5: Solve for x
    x = 4,547,003,450.57/76,569.60
  6. Step 6: Final answer
    x = 59,383.93

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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.