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Finding the Fourth Proportional to 118,106.76, 162,946.44 and 75,688.68

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Solution

The fourth proportional to 118,106.76, 162,946.44 and 75,688.68 is: 104,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,106.76 : 162,946.44 = 75,688.68 : x
  2. Step 2: Convert to fraction form
    118,106.76/162,946.44 = 75,688.68/x
  3. Step 3: Cross multiply
    118,106.76x = 162,946.44 × 75,688.68
  4. Step 4: Simplify right side
    118,106.76x = 12,333,200,954.30
  5. Step 5: Solve for x
    x = 12,333,200,954.30/118,106.76
  6. Step 6: Final answer
    x = 104,424.17

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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.