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Finding the Fourth Proportional to 119,437.61, 164,823.57 and 65,726.10

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Solution

The fourth proportional to 119,437.61, 164,823.57 and 65,726.10 is: 90,701.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,437.61 : 164,823.57 = 65,726.10 : x
  2. Step 2: Convert to fraction form
    119,437.61/164,823.57 = 65,726.10/x
  3. Step 3: Cross multiply
    119,437.61x = 164,823.57 × 65,726.10
  4. Step 4: Simplify right side
    119,437.61x = 10,833,210,444.18
  5. Step 5: Solve for x
    x = 10,833,210,444.18/119,437.61
  6. Step 6: Final answer
    x = 90,701.84

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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.