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Finding the Fourth Proportional to 85,988.48, 118,655.04 and 48,266.88

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Solution

The fourth proportional to 85,988.48, 118,655.04 and 48,266.88 is: 66,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,988.48 : 118,655.04 = 48,266.88 : x
  2. Step 2: Convert to fraction form
    85,988.48/118,655.04 = 48,266.88/x
  3. Step 3: Cross multiply
    85,988.48x = 118,655.04 × 48,266.88
  4. Step 4: Simplify right side
    85,988.48x = 5,727,108,577.08
  5. Step 5: Solve for x
    x = 5,727,108,577.08/85,988.48
  6. Step 6: Final answer
    x = 66,603.21

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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.