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Finding the Fourth Proportional to 96,130.80, 132,656.40 and 53,688.60

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Solution

The fourth proportional to 96,130.80, 132,656.40 and 53,688.60 is: 74,087.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,130.80 : 132,656.40 = 53,688.60 : x
  2. Step 2: Convert to fraction form
    96,130.80/132,656.40 = 53,688.60/x
  3. Step 3: Cross multiply
    96,130.80x = 132,656.40 × 53,688.60
  4. Step 4: Simplify right side
    96,130.80x = 7,122,136,397.04
  5. Step 5: Solve for x
    x = 7,122,136,397.04/96,130.80
  6. Step 6: Final answer
    x = 74,087.98

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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.