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Finding the Fourth Proportional to 153,153.80, 229,212.30 and 134,491.40

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Solution

The fourth proportional to 153,153.80, 229,212.30 and 134,491.40 is: 201,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,153.80 : 229,212.30 = 134,491.40 : x
  2. Step 2: Convert to fraction form
    153,153.80/229,212.30 = 134,491.40/x
  3. Step 3: Cross multiply
    153,153.80x = 229,212.30 × 134,491.40
  4. Step 4: Simplify right side
    153,153.80x = 30,827,083,124.22
  5. Step 5: Solve for x
    x = 30,827,083,124.22/153,153.80
  6. Step 6: Final answer
    x = 201,281.87

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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.