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Finding the Fourth Proportional to 85,294.08, 117,710.48 and 47,568.16

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Solution

The fourth proportional to 85,294.08, 117,710.48 and 47,568.16 is: 65,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,294.08 : 117,710.48 = 47,568.16 : x
  2. Step 2: Convert to fraction form
    85,294.08/117,710.48 = 47,568.16/x
  3. Step 3: Cross multiply
    85,294.08x = 117,710.48 × 47,568.16
  4. Step 4: Simplify right side
    85,294.08x = 5,599,270,946.32
  5. Step 5: Solve for x
    x = 5,599,270,946.32/85,294.08
  6. Step 6: Final answer
    x = 65,646.65

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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.