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Finding the Fourth Proportional to 156,630.51, 216,146.88 and 88,646.27

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Solution

The fourth proportional to 156,630.51, 216,146.88 and 88,646.27 is: 122,330.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,630.51 : 216,146.88 = 88,646.27 : x
  2. Step 2: Convert to fraction form
    156,630.51/216,146.88 = 88,646.27/x
  3. Step 3: Cross multiply
    156,630.51x = 216,146.88 × 88,646.27
  4. Step 4: Simplify right side
    156,630.51x = 19,160,613,603.40
  5. Step 5: Solve for x
    x = 19,160,613,603.40/156,630.51
  6. Step 6: Final answer
    x = 122,330.02

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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.