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Finding the Fourth Proportional to 115,098.14, 158,824.08 and 64,109.16

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Solution

The fourth proportional to 115,098.14, 158,824.08 and 64,109.16 is: 88,464.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,098.14 : 158,824.08 = 64,109.16 : x
  2. Step 2: Convert to fraction form
    115,098.14/158,824.08 = 64,109.16/x
  3. Step 3: Cross multiply
    115,098.14x = 158,824.08 × 64,109.16
  4. Step 4: Simplify right side
    115,098.14x = 10,182,078,356.57
  5. Step 5: Solve for x
    x = 10,182,078,356.57/115,098.14
  6. Step 6: Final answer
    x = 88,464.32

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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.