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Finding the Fourth Proportional to 118,315.88, 163,274.68 and 64,600.74

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Solution

The fourth proportional to 118,315.88, 163,274.68 and 64,600.74 is: 89,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.88 : 163,274.68 = 64,600.74 : x
  2. Step 2: Convert to fraction form
    118,315.88/163,274.68 = 64,600.74/x
  3. Step 3: Cross multiply
    118,315.88x = 163,274.68 × 64,600.74
  4. Step 4: Simplify right side
    118,315.88x = 10,547,665,151.26
  5. Step 5: Solve for x
    x = 10,547,665,151.26/118,315.88
  6. Step 6: Final answer
    x = 89,148.35

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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.