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Finding the Fourth Proportional to 86,710.16, 119,758.74 and 58,366.64

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Solution

The fourth proportional to 86,710.16, 119,758.74 and 58,366.64 is: 80,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,710.16 : 119,758.74 = 58,366.64 : x
  2. Step 2: Convert to fraction form
    86,710.16/119,758.74 = 58,366.64/x
  3. Step 3: Cross multiply
    86,710.16x = 119,758.74 × 58,366.64
  4. Step 4: Simplify right side
    86,710.16x = 6,989,915,264.43
  5. Step 5: Solve for x
    x = 6,989,915,264.43/86,710.16
  6. Step 6: Final answer
    x = 80,612.41

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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.