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Finding the Fourth Proportional to 356,254.74, 534,332.43 and 89,998.74

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Solution

The fourth proportional to 356,254.74, 534,332.43 and 89,998.74 is: 134,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,254.74 : 534,332.43 = 89,998.74 : x
  2. Step 2: Convert to fraction form
    356,254.74/534,332.43 = 89,998.74/x
  3. Step 3: Cross multiply
    356,254.74x = 534,332.43 × 89,998.74
  4. Step 4: Simplify right side
    356,254.74x = 48,089,245,441.14
  5. Step 5: Solve for x
    x = 48,089,245,441.14/356,254.74
  6. Step 6: Final answer
    x = 134,985.56

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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.