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Finding the Fourth Proportional to 147,929.60, 221,894.40 and 100,690.40

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Solution

The fourth proportional to 147,929.60, 221,894.40 and 100,690.40 is: 151,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,929.60 : 221,894.40 = 100,690.40 : x
  2. Step 2: Convert to fraction form
    147,929.60/221,894.40 = 100,690.40/x
  3. Step 3: Cross multiply
    147,929.60x = 221,894.40 × 100,690.40
  4. Step 4: Simplify right side
    147,929.60x = 22,342,635,893.76
  5. Step 5: Solve for x
    x = 22,342,635,893.76/147,929.60
  6. Step 6: Final answer
    x = 151,035.60

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1.5x scale

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.