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Finding the Fourth Proportional to 357,123.06, 535,667.28 and 132,527.28

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Solution

The fourth proportional to 357,123.06, 535,667.28 and 132,527.28 is: 198,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,123.06 : 535,667.28 = 132,527.28 : x
  2. Step 2: Convert to fraction form
    357,123.06/535,667.28 = 132,527.28/x
  3. Step 3: Cross multiply
    357,123.06x = 535,667.28 × 132,527.28
  4. Step 4: Simplify right side
    357,123.06x = 70,990,527,603.40
  5. Step 5: Solve for x
    x = 70,990,527,603.40/357,123.06
  6. Step 6: Final answer
    x = 198,784.50

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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.