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Finding the Fourth Proportional to 245,782.81, 368,331.48 and 185,762.01

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Solution

The fourth proportional to 245,782.81, 368,331.48 and 185,762.01 is: 278,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,782.81 : 368,331.48 = 185,762.01 : x
  2. Step 2: Convert to fraction form
    245,782.81/368,331.48 = 185,762.01/x
  3. Step 3: Cross multiply
    245,782.81x = 368,331.48 × 185,762.01
  4. Step 4: Simplify right side
    245,782.81x = 68,421,996,071.07
  5. Step 5: Solve for x
    x = 68,421,996,071.07/245,782.81
  6. Step 6: Final answer
    x = 278,383.98

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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.