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Finding the Fourth Proportional to 535,169.40, 802,750.46 and 130,356.78

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Solution

The fourth proportional to 535,169.40, 802,750.46 and 130,356.78 is: 195,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,169.40 : 802,750.46 = 130,356.78 : x
  2. Step 2: Convert to fraction form
    535,169.40/802,750.46 = 130,356.78/x
  3. Step 3: Cross multiply
    535,169.40x = 802,750.46 × 130,356.78
  4. Step 4: Simplify right side
    535,169.40x = 104,643,964,457.34
  5. Step 5: Solve for x
    x = 104,643,964,457.34/535,169.40
  6. Step 6: Final answer
    x = 195,534.28

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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.