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Finding the Fourth Proportional to 112,416.70, 168,598.05 and 64,929.10

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Solution

The fourth proportional to 112,416.70, 168,598.05 and 64,929.10 is: 97,378.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,416.70 : 168,598.05 = 64,929.10 : x
  2. Step 2: Convert to fraction form
    112,416.70/168,598.05 = 64,929.10/x
  3. Step 3: Cross multiply
    112,416.70x = 168,598.05 × 64,929.10
  4. Step 4: Simplify right side
    112,416.70x = 10,946,919,648.26
  5. Step 5: Solve for x
    x = 10,946,919,648.26/112,416.70
  6. Step 6: Final answer
    x = 97,378.06

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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.