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Finding the Fourth Proportional to 408,068.10, 612,303.30 and 183,587.40

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Solution

The fourth proportional to 408,068.10, 612,303.30 and 183,587.40 is: 275,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,068.10 : 612,303.30 = 183,587.40 : x
  2. Step 2: Convert to fraction form
    408,068.10/612,303.30 = 183,587.40/x
  3. Step 3: Cross multiply
    408,068.10x = 612,303.30 × 183,587.40
  4. Step 4: Simplify right side
    408,068.10x = 112,411,170,858.42
  5. Step 5: Solve for x
    x = 112,411,170,858.42/408,068.10
  6. Step 6: Final answer
    x = 275,471.60

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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.