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Finding the Fourth Proportional to 109,929.60, 148,521.60 and 109,929.60

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Solution

The fourth proportional to 109,929.60, 148,521.60 and 109,929.60 is: 148,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,929.60 : 148,521.60 = 109,929.60 : x
  2. Step 2: Convert to fraction form
    109,929.60/148,521.60 = 109,929.60/x
  3. Step 3: Cross multiply
    109,929.60x = 148,521.60 × 109,929.60
  4. Step 4: Simplify right side
    109,929.60x = 16,326,920,079.36
  5. Step 5: Solve for x
    x = 16,326,920,079.36/109,929.60
  6. Step 6: Final answer
    x = 148,521.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.