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Finding the Fourth Proportional to 141,803.84, 212,692.80 and 43,307.84

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Solution

The fourth proportional to 141,803.84, 212,692.80 and 43,307.84 is: 64,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,803.84 : 212,692.80 = 43,307.84 : x
  2. Step 2: Convert to fraction form
    141,803.84/212,692.80 = 43,307.84/x
  3. Step 3: Cross multiply
    141,803.84x = 212,692.80 × 43,307.84
  4. Step 4: Simplify right side
    141,803.84x = 9,211,265,751.55
  5. Step 5: Solve for x
    x = 9,211,265,751.55/141,803.84
  6. Step 6: Final answer
    x = 64,957.80

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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.