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Finding the Fourth Proportional to 249,317.80, 373,967.10 and 83,105.80

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Solution

The fourth proportional to 249,317.80, 373,967.10 and 83,105.80 is: 124,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,317.80 : 373,967.10 = 83,105.80 : x
  2. Step 2: Convert to fraction form
    249,317.80/373,967.10 = 83,105.80/x
  3. Step 3: Cross multiply
    249,317.80x = 373,967.10 × 83,105.80
  4. Step 4: Simplify right side
    249,317.80x = 31,078,835,019.18
  5. Step 5: Solve for x
    x = 31,078,835,019.18/249,317.80
  6. Step 6: Final answer
    x = 124,655.50

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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.