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Finding the Fourth Proportional to 349,707.30, 524,776.95 and 139,323.30

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Solution

The fourth proportional to 349,707.30, 524,776.95 and 139,323.30 is: 209,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,707.30 : 524,776.95 = 139,323.30 : x
  2. Step 2: Convert to fraction form
    349,707.30/524,776.95 = 139,323.30/x
  3. Step 3: Cross multiply
    349,707.30x = 524,776.95 × 139,323.30
  4. Step 4: Simplify right side
    349,707.30x = 73,113,656,437.94
  5. Step 5: Solve for x
    x = 73,113,656,437.94/349,707.30
  6. Step 6: Final answer
    x = 209,071.00

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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.