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Finding the Fourth Proportional to 245,783.81, 368,332.98 and 185,763.01

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Solution

The fourth proportional to 245,783.81, 368,332.98 and 185,763.01 is: 278,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,783.81 : 368,332.98 = 185,763.01 : x
  2. Step 2: Convert to fraction form
    245,783.81/368,332.98 = 185,763.01/x
  3. Step 3: Cross multiply
    245,783.81x = 368,332.98 × 185,763.01
  4. Step 4: Simplify right side
    245,783.81x = 68,422,643,047.07
  5. Step 5: Solve for x
    x = 68,422,643,047.07/245,783.81
  6. Step 6: Final answer
    x = 278,385.48

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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.