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Finding the Fourth Proportional to 101,364.48, 152,046.72 and 70,221.60

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Solution

The fourth proportional to 101,364.48, 152,046.72 and 70,221.60 is: 105,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,364.48 : 152,046.72 = 70,221.60 : x
  2. Step 2: Convert to fraction form
    101,364.48/152,046.72 = 70,221.60/x
  3. Step 3: Cross multiply
    101,364.48x = 152,046.72 × 70,221.60
  4. Step 4: Simplify right side
    101,364.48x = 10,676,963,953.15
  5. Step 5: Solve for x
    x = 10,676,963,953.15/101,364.48
  6. Step 6: Final answer
    x = 105,332.40

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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.