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Finding the Fourth Proportional to 118,460.74, 163,471.08 and 64,746.40

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Solution

The fourth proportional to 118,460.74, 163,471.08 and 64,746.40 is: 89,347.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,460.74 : 163,471.08 = 64,746.40 : x
  2. Step 2: Convert to fraction form
    118,460.74/163,471.08 = 64,746.40/x
  3. Step 3: Cross multiply
    118,460.74x = 163,471.08 × 64,746.40
  4. Step 4: Simplify right side
    118,460.74x = 10,584,163,934.11
  5. Step 5: Solve for x
    x = 10,584,163,934.11/118,460.74
  6. Step 6: Final answer
    x = 89,347.44

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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.