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Finding the Fourth Proportional to 511,686.67, 767,526.95 and 132,606.47

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Solution

The fourth proportional to 511,686.67, 767,526.95 and 132,606.47 is: 198,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,686.67 : 767,526.95 = 132,606.47 : x
  2. Step 2: Convert to fraction form
    511,686.67/767,526.95 = 132,606.47/x
  3. Step 3: Cross multiply
    511,686.67x = 767,526.95 × 132,606.47
  4. Step 4: Simplify right side
    511,686.67x = 101,779,038,806.33
  5. Step 5: Solve for x
    x = 101,779,038,806.33/511,686.67
  6. Step 6: Final answer
    x = 198,908.91

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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.