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Finding the Fourth Proportional to 260,353.80, 390,530.70 and 94,102.92

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Solution

The fourth proportional to 260,353.80, 390,530.70 and 94,102.92 is: 141,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,353.80 : 390,530.70 = 94,102.92 : x
  2. Step 2: Convert to fraction form
    260,353.80/390,530.70 = 94,102.92/x
  3. Step 3: Cross multiply
    260,353.80x = 390,530.70 × 94,102.92
  4. Step 4: Simplify right side
    260,353.80x = 36,750,079,219.64
  5. Step 5: Solve for x
    x = 36,750,079,219.64/260,353.80
  6. Step 6: Final answer
    x = 141,154.38

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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.