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Finding the Fourth Proportional to 118,673.84, 163,717.76 and 70,903.28

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Solution

The fourth proportional to 118,673.84, 163,717.76 and 70,903.28 is: 97,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,673.84 : 163,717.76 = 70,903.28 : x
  2. Step 2: Convert to fraction form
    118,673.84/163,717.76 = 70,903.28/x
  3. Step 3: Cross multiply
    118,673.84x = 163,717.76 × 70,903.28
  4. Step 4: Simplify right side
    118,673.84x = 11,608,126,178.25
  5. Step 5: Solve for x
    x = 11,608,126,178.25/118,673.84
  6. Step 6: Final answer
    x = 97,815.38

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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.