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Finding the Fourth Proportional to 369,073.33, 553,413.16 and 191,139.01

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Solution

The fourth proportional to 369,073.33, 553,413.16 and 191,139.01 is: 286,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,073.33 : 553,413.16 = 191,139.01 : x
  2. Step 2: Convert to fraction form
    369,073.33/553,413.16 = 191,139.01/x
  3. Step 3: Cross multiply
    369,073.33x = 553,413.16 × 191,139.01
  4. Step 4: Simplify right side
    369,073.33x = 105,778,843,523.37
  5. Step 5: Solve for x
    x = 105,778,843,523.37/369,073.33
  6. Step 6: Final answer
    x = 286,606.58

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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.