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Finding the Fourth Proportional to 144,378.70, 216,598.95 and 43,184.69

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Solution

The fourth proportional to 144,378.70, 216,598.95 and 43,184.69 is: 64,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,378.70 : 216,598.95 = 43,184.69 : x
  2. Step 2: Convert to fraction form
    144,378.70/216,598.95 = 43,184.69/x
  3. Step 3: Cross multiply
    144,378.70x = 216,598.95 × 43,184.69
  4. Step 4: Simplify right side
    144,378.70x = 9,353,758,510.08
  5. Step 5: Solve for x
    x = 9,353,758,510.08/144,378.70
  6. Step 6: Final answer
    x = 64,786.28

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1.5x scale

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.