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Finding the Fourth Proportional to 151,360.62, 208,897.72 and 97,801.40

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Solution

The fourth proportional to 151,360.62, 208,897.72 and 97,801.40 is: 134,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,360.62 : 208,897.72 = 97,801.40 : x
  2. Step 2: Convert to fraction form
    151,360.62/208,897.72 = 97,801.40/x
  3. Step 3: Cross multiply
    151,360.62x = 208,897.72 × 97,801.40
  4. Step 4: Simplify right side
    151,360.62x = 20,430,489,472.81
  5. Step 5: Solve for x
    x = 20,430,489,472.81/151,360.62
  6. Step 6: Final answer
    x = 134,978.90

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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.