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Finding the Fourth Proportional to 165,477.60, 248,281.20 and 60,307.20

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Solution

The fourth proportional to 165,477.60, 248,281.20 and 60,307.20 is: 90,484.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,477.60 : 248,281.20 = 60,307.20 : x
  2. Step 2: Convert to fraction form
    165,477.60/248,281.20 = 60,307.20/x
  3. Step 3: Cross multiply
    165,477.60x = 248,281.20 × 60,307.20
  4. Step 4: Simplify right side
    165,477.60x = 14,973,143,984.64
  5. Step 5: Solve for x
    x = 14,973,143,984.64/165,477.60
  6. Step 6: Final answer
    x = 90,484.42

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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.