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Finding the Fourth Proportional to 260,587.80, 390,881.70 and 184,480.20

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Solution

The fourth proportional to 260,587.80, 390,881.70 and 184,480.20 is: 276,720.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,587.80 : 390,881.70 = 184,480.20 : x
  2. Step 2: Convert to fraction form
    260,587.80/390,881.70 = 184,480.20/x
  3. Step 3: Cross multiply
    260,587.80x = 390,881.70 × 184,480.20
  4. Step 4: Simplify right side
    260,587.80x = 72,109,934,192.34
  5. Step 5: Solve for x
    x = 72,109,934,192.34/260,587.80
  6. Step 6: Final answer
    x = 276,720.30

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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.