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Finding the Fourth Proportional to 249,118.50, 343,783.53 and 148,516.50

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Solution

The fourth proportional to 249,118.50, 343,783.53 and 148,516.50 is: 204,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,118.50 : 343,783.53 = 148,516.50 : x
  2. Step 2: Convert to fraction form
    249,118.50/343,783.53 = 148,516.50/x
  3. Step 3: Cross multiply
    249,118.50x = 343,783.53 × 148,516.50
  4. Step 4: Simplify right side
    249,118.50x = 51,057,526,633.25
  5. Step 5: Solve for x
    x = 51,057,526,633.25/249,118.50
  6. Step 6: Final answer
    x = 204,952.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.