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Finding the Fourth Proportional to 272,254.19, 375,693 and 151,390.99

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Solution

The fourth proportional to 272,254.19, 375,693 and 151,390.99 is: 208,909.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,254.19 : 375,693 = 151,390.99 : x
  2. Step 2: Convert to fraction form
    272,254.19/375,693 = 151,390.99/x
  3. Step 3: Cross multiply
    272,254.19x = 375,693 × 151,390.99
  4. Step 4: Simplify right side
    272,254.19x = 56,876,533,327.61
  5. Step 5: Solve for x
    x = 56,876,533,327.61/272,254.19
  6. Step 6: Final answer
    x = 208,909.67

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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.