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Finding the Fourth Proportional to 446,643.95, 669,821.95 and 147,053.20

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Solution

The fourth proportional to 446,643.95, 669,821.95 and 147,053.20 is: 220,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,643.95 : 669,821.95 = 147,053.20 : x
  2. Step 2: Convert to fraction form
    446,643.95/669,821.95 = 147,053.20/x
  3. Step 3: Cross multiply
    446,643.95x = 669,821.95 × 147,053.20
  4. Step 4: Simplify right side
    446,643.95x = 98,499,460,442.47
  5. Step 5: Solve for x
    x = 98,499,460,442.47/446,643.95
  6. Step 6: Final answer
    x = 220,532.40

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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.