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Finding the Fourth Proportional to 114,646.80, 171,970.20 and 67,875.60

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Solution

The fourth proportional to 114,646.80, 171,970.20 and 67,875.60 is: 101,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,646.80 : 171,970.20 = 67,875.60 : x
  2. Step 2: Convert to fraction form
    114,646.80/171,970.20 = 67,875.60/x
  3. Step 3: Cross multiply
    114,646.80x = 171,970.20 × 67,875.60
  4. Step 4: Simplify right side
    114,646.80x = 11,672,580,507.12
  5. Step 5: Solve for x
    x = 11,672,580,507.12/114,646.80
  6. Step 6: Final answer
    x = 101,813.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.