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Finding the Fourth Proportional to 272,142.06, 375,530.63 and 157,402.32

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Solution

The fourth proportional to 272,142.06, 375,530.63 and 157,402.32 is: 217,200.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,142.06 : 375,530.63 = 157,402.32 : x
  2. Step 2: Convert to fraction form
    272,142.06/375,530.63 = 157,402.32/x
  3. Step 3: Cross multiply
    272,142.06x = 375,530.63 × 157,402.32
  4. Step 4: Simplify right side
    272,142.06x = 59,109,391,606.05
  5. Step 5: Solve for x
    x = 59,109,391,606.05/272,142.06
  6. Step 6: Final answer
    x = 217,200.50

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1.5x scale

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.