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Finding the Fourth Proportional to 124,038.40, 186,057.60 and 117,623.20

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Solution

The fourth proportional to 124,038.40, 186,057.60 and 117,623.20 is: 176,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,038.40 : 186,057.60 = 117,623.20 : x
  2. Step 2: Convert to fraction form
    124,038.40/186,057.60 = 117,623.20/x
  3. Step 3: Cross multiply
    124,038.40x = 186,057.60 × 117,623.20
  4. Step 4: Simplify right side
    124,038.40x = 21,884,690,296.32
  5. Step 5: Solve for x
    x = 21,884,690,296.32/124,038.40
  6. Step 6: Final answer
    x = 176,434.80

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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.