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Finding the Fourth Proportional to 292,421.70, 438,049.35 and 167,616.90

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Solution

The fourth proportional to 292,421.70, 438,049.35 and 167,616.90 is: 251,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,421.70 : 438,049.35 = 167,616.90 : x
  2. Step 2: Convert to fraction form
    292,421.70/438,049.35 = 167,616.90/x
  3. Step 3: Cross multiply
    292,421.70x = 438,049.35 × 167,616.90
  4. Step 4: Simplify right side
    292,421.70x = 73,424,474,094.02
  5. Step 5: Solve for x
    x = 73,424,474,094.02/292,421.70
  6. Step 6: Final answer
    x = 251,091.06

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1.5x scale

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.