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Finding the Fourth Proportional to 98,897.42, 136,478.85 and 53,575.49

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Solution

The fourth proportional to 98,897.42, 136,478.85 and 53,575.49 is: 73,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,897.42 : 136,478.85 = 53,575.49 : x
  2. Step 2: Convert to fraction form
    98,897.42/136,478.85 = 53,575.49/x
  3. Step 3: Cross multiply
    98,897.42x = 136,478.85 × 53,575.49
  4. Step 4: Simplify right side
    98,897.42x = 7,311,921,263.39
  5. Step 5: Solve for x
    x = 7,311,921,263.39/98,897.42
  6. Step 6: Final answer
    x = 73,934.40

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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.