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Finding the Fourth Proportional to 454,615.01, 681,897.80 and 139,071.92

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Solution

The fourth proportional to 454,615.01, 681,897.80 and 139,071.92 is: 208,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,615.01 : 681,897.80 = 139,071.92 : x
  2. Step 2: Convert to fraction form
    454,615.01/681,897.80 = 139,071.92/x
  3. Step 3: Cross multiply
    454,615.01x = 681,897.80 × 139,071.92
  4. Step 4: Simplify right side
    454,615.01x = 94,832,836,281.36
  5. Step 5: Solve for x
    x = 94,832,836,281.36/454,615.01
  6. Step 6: Final answer
    x = 208,600.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.