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Finding the Fourth Proportional to 189,191.32, 260,812.73 and 148,835.00

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Solution

The fourth proportional to 189,191.32, 260,812.73 and 148,835.00 is: 205,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,191.32 : 260,812.73 = 148,835.00 : x
  2. Step 2: Convert to fraction form
    189,191.32/260,812.73 = 148,835.00/x
  3. Step 3: Cross multiply
    189,191.32x = 260,812.73 × 148,835.00
  4. Step 4: Simplify right side
    189,191.32x = 38,818,063,693.67
  5. Step 5: Solve for x
    x = 38,818,063,693.67/189,191.32
  6. Step 6: Final answer
    x = 205,178.89

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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.