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Finding the Fourth Proportional to 168,547.80, 253,113.30 and 109,644.60

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Solution

The fourth proportional to 168,547.80, 253,113.30 and 109,644.60 is: 164,656.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,547.80 : 253,113.30 = 109,644.60 : x
  2. Step 2: Convert to fraction form
    168,547.80/253,113.30 = 109,644.60/x
  3. Step 3: Cross multiply
    168,547.80x = 253,113.30 × 109,644.60
  4. Step 4: Simplify right side
    168,547.80x = 27,752,506,533.18
  5. Step 5: Solve for x
    x = 27,752,506,533.18/168,547.80
  6. Step 6: Final answer
    x = 164,656.59

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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.