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Finding the Fourth Proportional to 64,873.60, 97,303.20 and 53,166.40

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Solution

The fourth proportional to 64,873.60, 97,303.20 and 53,166.40 is: 79,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.60 : 97,303.20 = 53,166.40 : x
  2. Step 2: Convert to fraction form
    64,873.60/97,303.20 = 53,166.40/x
  3. Step 3: Cross multiply
    64,873.60x = 97,303.20 × 53,166.40
  4. Step 4: Simplify right side
    64,873.60x = 5,173,260,852.48
  5. Step 5: Solve for x
    x = 5,173,260,852.48/64,873.60
  6. Step 6: Final answer
    x = 79,743.70

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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.