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Finding the Fourth Proportional to 118,364.76, 163,342.98 and 70,620.12

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Solution

The fourth proportional to 118,364.76, 163,342.98 and 70,620.12 is: 97,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,364.76 : 163,342.98 = 70,620.12 : x
  2. Step 2: Convert to fraction form
    118,364.76/163,342.98 = 70,620.12/x
  3. Step 3: Cross multiply
    118,364.76x = 163,342.98 × 70,620.12
  4. Step 4: Simplify right side
    118,364.76x = 11,535,300,848.76
  5. Step 5: Solve for x
    x = 11,535,300,848.76/118,364.76
  6. Step 6: Final answer
    x = 97,455.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.