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Finding the Fourth Proportional to 118,635.44, 163,700.72 and 70,878.64

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Solution

The fourth proportional to 118,635.44, 163,700.72 and 70,878.64 is: 97,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.44 : 163,700.72 = 70,878.64 : x
  2. Step 2: Convert to fraction form
    118,635.44/163,700.72 = 70,878.64/x
  3. Step 3: Cross multiply
    118,635.44x = 163,700.72 × 70,878.64
  4. Step 4: Simplify right side
    118,635.44x = 11,602,884,400.62
  5. Step 5: Solve for x
    x = 11,602,884,400.62/118,635.44
  6. Step 6: Final answer
    x = 97,802.85

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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.