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Finding the Fourth Proportional to 121,185.96, 181,807.77 and 61,066.71

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Solution

The fourth proportional to 121,185.96, 181,807.77 and 61,066.71 is: 91,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,185.96 : 181,807.77 = 61,066.71 : x
  2. Step 2: Convert to fraction form
    121,185.96/181,807.77 = 61,066.71/x
  3. Step 3: Cross multiply
    121,185.96x = 181,807.77 × 61,066.71
  4. Step 4: Simplify right side
    121,185.96x = 11,102,402,595.34
  5. Step 5: Solve for x
    x = 11,102,402,595.34/121,185.96
  6. Step 6: Final answer
    x = 91,614.60

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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.