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Finding the Fourth Proportional to 141,803.61, 212,737.03 and 61,854.59

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Solution

The fourth proportional to 141,803.61, 212,737.03 and 61,854.59 is: 92,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,803.61 : 212,737.03 = 61,854.59 : x
  2. Step 2: Convert to fraction form
    141,803.61/212,737.03 = 61,854.59/x
  3. Step 3: Cross multiply
    141,803.61x = 212,737.03 × 61,854.59
  4. Step 4: Simplify right side
    141,803.61x = 13,158,761,296.96
  5. Step 5: Solve for x
    x = 13,158,761,296.96/141,803.61
  6. Step 6: Final answer
    x = 92,795.67

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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.