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Finding the Fourth Proportional to 76,571.47, 114,417.91 and 58,459.47

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Solution

The fourth proportional to 76,571.47, 114,417.91 and 58,459.47 is: 87,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,571.47 : 114,417.91 = 58,459.47 : x
  2. Step 2: Convert to fraction form
    76,571.47/114,417.91 = 58,459.47/x
  3. Step 3: Cross multiply
    76,571.47x = 114,417.91 × 58,459.47
  4. Step 4: Simplify right side
    76,571.47x = 6,688,810,377.11
  5. Step 5: Solve for x
    x = 6,688,810,377.11/76,571.47
  6. Step 6: Final answer
    x = 87,353.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.