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Finding the Fourth Proportional to 121,316.60, 181,888.74 and 46,373.60

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Solution

The fourth proportional to 121,316.60, 181,888.74 and 46,373.60 is: 69,527.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,316.60 : 181,888.74 = 46,373.60 : x
  2. Step 2: Convert to fraction form
    121,316.60/181,888.74 = 46,373.60/x
  3. Step 3: Cross multiply
    121,316.60x = 181,888.74 × 46,373.60
  4. Step 4: Simplify right side
    121,316.60x = 8,434,835,673.26
  5. Step 5: Solve for x
    x = 8,434,835,673.26/121,316.60
  6. Step 6: Final answer
    x = 69,527.47

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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.