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Finding the Fourth Proportional to 118,702.05, 163,808.29 and 64,254.25

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Solution

The fourth proportional to 118,702.05, 163,808.29 and 64,254.25 is: 88,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,702.05 : 163,808.29 = 64,254.25 : x
  2. Step 2: Convert to fraction form
    118,702.05/163,808.29 = 64,254.25/x
  3. Step 3: Cross multiply
    118,702.05x = 163,808.29 × 64,254.25
  4. Step 4: Simplify right side
    118,702.05x = 10,525,378,496.46
  5. Step 5: Solve for x
    x = 10,525,378,496.46/118,702.05
  6. Step 6: Final answer
    x = 88,670.57

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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.