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Finding the Fourth Proportional to 76,011.66, 104,925.69 and 68,040.10

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Solution

The fourth proportional to 76,011.66, 104,925.69 and 68,040.10 is: 93,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,011.66 : 104,925.69 = 68,040.10 : x
  2. Step 2: Convert to fraction form
    76,011.66/104,925.69 = 68,040.10/x
  3. Step 3: Cross multiply
    76,011.66x = 104,925.69 × 68,040.10
  4. Step 4: Simplify right side
    76,011.66x = 7,139,154,440.17
  5. Step 5: Solve for x
    x = 7,139,154,440.17/76,011.66
  6. Step 6: Final answer
    x = 93,921.83

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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.