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Finding the Fourth Proportional to 113,113.60, 169,670.40 and 107,929.60

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Solution

The fourth proportional to 113,113.60, 169,670.40 and 107,929.60 is: 161,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,113.60 : 169,670.40 = 107,929.60 : x
  2. Step 2: Convert to fraction form
    113,113.60/169,670.40 = 107,929.60/x
  3. Step 3: Cross multiply
    113,113.60x = 169,670.40 × 107,929.60
  4. Step 4: Simplify right side
    113,113.60x = 18,312,458,403.84
  5. Step 5: Solve for x
    x = 18,312,458,403.84/113,113.60
  6. Step 6: Final answer
    x = 161,894.40

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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.