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Finding the Fourth Proportional to 118,314.68, 163,274.60 and 64,600.16

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Solution

The fourth proportional to 118,314.68, 163,274.60 and 64,600.16 is: 89,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314.68 : 163,274.60 = 64,600.16 : x
  2. Step 2: Convert to fraction form
    118,314.68/163,274.60 = 64,600.16/x
  3. Step 3: Cross multiply
    118,314.68x = 163,274.60 × 64,600.16
  4. Step 4: Simplify right side
    118,314.68x = 10,547,565,283.94
  5. Step 5: Solve for x
    x = 10,547,565,283.94/118,314.68
  6. Step 6: Final answer
    x = 89,148.41

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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.