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Finding the Fourth Proportional to 288,095.72, 432,189.66 and 121,885.16

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Solution

The fourth proportional to 288,095.72, 432,189.66 and 121,885.16 is: 182,847.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,095.72 : 432,189.66 = 121,885.16 : x
  2. Step 2: Convert to fraction form
    288,095.72/432,189.66 = 121,885.16/x
  3. Step 3: Cross multiply
    288,095.72x = 432,189.66 × 121,885.16
  4. Step 4: Simplify right side
    288,095.72x = 52,677,505,859.45
  5. Step 5: Solve for x
    x = 52,677,505,859.45/288,095.72
  6. Step 6: Final answer
    x = 182,847.24

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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.