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Finding the Fourth Proportional to 136,398.48, 188,316.07 and 100,526.01

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Solution

The fourth proportional to 136,398.48, 188,316.07 and 100,526.01 is: 138,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,398.48 : 188,316.07 = 100,526.01 : x
  2. Step 2: Convert to fraction form
    136,398.48/188,316.07 = 100,526.01/x
  3. Step 3: Cross multiply
    136,398.48x = 188,316.07 × 100,526.01
  4. Step 4: Simplify right side
    136,398.48x = 18,930,662,884.67
  5. Step 5: Solve for x
    x = 18,930,662,884.67/136,398.48
  6. Step 6: Final answer
    x = 138,789.40

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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.