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Finding the Fourth Proportional to 480,020.60, 720,030.90 and 164,449.40

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Solution

The fourth proportional to 480,020.60, 720,030.90 and 164,449.40 is: 246,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,020.60 : 720,030.90 = 164,449.40 : x
  2. Step 2: Convert to fraction form
    480,020.60/720,030.90 = 164,449.40/x
  3. Step 3: Cross multiply
    480,020.60x = 720,030.90 × 164,449.40
  4. Step 4: Simplify right side
    480,020.60x = 118,408,649,486.46
  5. Step 5: Solve for x
    x = 118,408,649,486.46/480,020.60
  6. Step 6: Final answer
    x = 246,674.10

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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.