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Finding the Fourth Proportional to 119,557.88, 164,988.63 and 65,841.76

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Solution

The fourth proportional to 119,557.88, 164,988.63 and 65,841.76 is: 90,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,557.88 : 164,988.63 = 65,841.76 : x
  2. Step 2: Convert to fraction form
    119,557.88/164,988.63 = 65,841.76/x
  3. Step 3: Cross multiply
    119,557.88x = 164,988.63 × 65,841.76
  4. Step 4: Simplify right side
    119,557.88x = 10,863,141,779.19
  5. Step 5: Solve for x
    x = 10,863,141,779.19/119,557.88
  6. Step 6: Final answer
    x = 90,860.94

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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.