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Finding the Fourth Proportional to 272,051.88, 375,397.80 and 151,218.36

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Solution

The fourth proportional to 272,051.88, 375,397.80 and 151,218.36 is: 208,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,051.88 : 375,397.80 = 151,218.36 : x
  2. Step 2: Convert to fraction form
    272,051.88/375,397.80 = 151,218.36/x
  3. Step 3: Cross multiply
    272,051.88x = 375,397.80 × 151,218.36
  4. Step 4: Simplify right side
    272,051.88x = 56,767,039,663.61
  5. Step 5: Solve for x
    x = 56,767,039,663.61/272,051.88
  6. Step 6: Final answer
    x = 208,662.55

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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.