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Finding the Fourth Proportional to 272,348.64, 375,841.11 and 153,116.64

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Solution

The fourth proportional to 272,348.64, 375,841.11 and 153,116.64 is: 211,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,348.64 : 375,841.11 = 153,116.64 : x
  2. Step 2: Convert to fraction form
    272,348.64/375,841.11 = 153,116.64/x
  3. Step 3: Cross multiply
    272,348.64x = 375,841.11 × 153,116.64
  4. Step 4: Simplify right side
    272,348.64x = 57,547,527,937.07
  5. Step 5: Solve for x
    x = 57,547,527,937.07/272,348.64
  6. Step 6: Final answer
    x = 211,300.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.