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Finding the Fourth Proportional to 118,502.64, 163,526.88 and 64,776.96

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Solution

The fourth proportional to 118,502.64, 163,526.88 and 64,776.96 is: 89,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,502.64 : 163,526.88 = 64,776.96 : x
  2. Step 2: Convert to fraction form
    118,502.64/163,526.88 = 64,776.96/x
  3. Step 3: Cross multiply
    118,502.64x = 163,526.88 × 64,776.96
  4. Step 4: Simplify right side
    118,502.64x = 10,592,774,164.68
  5. Step 5: Solve for x
    x = 10,592,774,164.68/118,502.64
  6. Step 6: Final answer
    x = 89,388.51

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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.