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Finding the Fourth Proportional to 121,327.60, 181,905.20 and 46,384.64

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Solution

The fourth proportional to 121,327.60, 181,905.20 and 46,384.64 is: 69,544.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327.60 : 181,905.20 = 46,384.64 : x
  2. Step 2: Convert to fraction form
    121,327.60/181,905.20 = 46,384.64/x
  3. Step 3: Cross multiply
    121,327.60x = 181,905.20 × 46,384.64
  4. Step 4: Simplify right side
    121,327.60x = 8,437,607,216.13
  5. Step 5: Solve for x
    x = 8,437,607,216.13/121,327.60
  6. Step 6: Final answer
    x = 69,544.00

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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.