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Finding the Fourth Proportional to 117,381.60, 175,802.40 and 96,386.40

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Solution

The fourth proportional to 117,381.60, 175,802.40 and 96,386.40 is: 144,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,381.60 : 175,802.40 = 96,386.40 : x
  2. Step 2: Convert to fraction form
    117,381.60/175,802.40 = 96,386.40/x
  3. Step 3: Cross multiply
    117,381.60x = 175,802.40 × 96,386.40
  4. Step 4: Simplify right side
    117,381.60x = 16,944,960,447.36
  5. Step 5: Solve for x
    x = 16,944,960,447.36/117,381.60
  6. Step 6: Final answer
    x = 144,357.89

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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.