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Finding the Fourth Proportional to 134,490.60, 201,735.90 and 117,869.40

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Solution

The fourth proportional to 134,490.60, 201,735.90 and 117,869.40 is: 176,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,490.60 : 201,735.90 = 117,869.40 : x
  2. Step 2: Convert to fraction form
    134,490.60/201,735.90 = 117,869.40/x
  3. Step 3: Cross multiply
    134,490.60x = 201,735.90 × 117,869.40
  4. Step 4: Simplify right side
    134,490.60x = 23,778,489,491.46
  5. Step 5: Solve for x
    x = 23,778,489,491.46/134,490.60
  6. Step 6: Final answer
    x = 176,804.10

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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.