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Finding the Fourth Proportional to 124,547.60, 186,821.40 and 114,924.80

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Solution

The fourth proportional to 124,547.60, 186,821.40 and 114,924.80 is: 172,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,547.60 : 186,821.40 = 114,924.80 : x
  2. Step 2: Convert to fraction form
    124,547.60/186,821.40 = 114,924.80/x
  3. Step 3: Cross multiply
    124,547.60x = 186,821.40 × 114,924.80
  4. Step 4: Simplify right side
    124,547.60x = 21,470,412,030.72
  5. Step 5: Solve for x
    x = 21,470,412,030.72/124,547.60
  6. Step 6: Final answer
    x = 172,387.20

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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.