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Finding the Fourth Proportional to 174,413.40, 261,036.90 and 121,925.40

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Solution

The fourth proportional to 174,413.40, 261,036.90 and 121,925.40 is: 182,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,413.40 : 261,036.90 = 121,925.40 : x
  2. Step 2: Convert to fraction form
    174,413.40/261,036.90 = 121,925.40/x
  3. Step 3: Cross multiply
    174,413.40x = 261,036.90 × 121,925.40
  4. Step 4: Simplify right side
    174,413.40x = 31,827,028,447.26
  5. Step 5: Solve for x
    x = 31,827,028,447.26/174,413.40
  6. Step 6: Final answer
    x = 182,480.41

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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.