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Finding the Fourth Proportional to 118,666.66, 163,760.19 and 64,955.08

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Solution

The fourth proportional to 118,666.66, 163,760.19 and 64,955.08 is: 89,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,666.66 : 163,760.19 = 64,955.08 : x
  2. Step 2: Convert to fraction form
    118,666.66/163,760.19 = 64,955.08/x
  3. Step 3: Cross multiply
    118,666.66x = 163,760.19 × 64,955.08
  4. Step 4: Simplify right side
    118,666.66x = 10,637,056,242.27
  5. Step 5: Solve for x
    x = 10,637,056,242.27/118,666.66
  6. Step 6: Final answer
    x = 89,638.12

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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.