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Finding the Fourth Proportional to 130,303.80, 195,455.70 and 123,046.20

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Solution

The fourth proportional to 130,303.80, 195,455.70 and 123,046.20 is: 184,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,303.80 : 195,455.70 = 123,046.20 : x
  2. Step 2: Convert to fraction form
    130,303.80/195,455.70 = 123,046.20/x
  3. Step 3: Cross multiply
    130,303.80x = 195,455.70 × 123,046.20
  4. Step 4: Simplify right side
    130,303.80x = 24,050,081,153.34
  5. Step 5: Solve for x
    x = 24,050,081,153.34/130,303.80
  6. Step 6: Final answer
    x = 184,569.30

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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.