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Finding the Fourth Proportional to 249,328.32, 373,979.76 and 91,544.64

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Solution

The fourth proportional to 249,328.32, 373,979.76 and 91,544.64 is: 137,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,328.32 : 373,979.76 = 91,544.64 : x
  2. Step 2: Convert to fraction form
    249,328.32/373,979.76 = 91,544.64/x
  3. Step 3: Cross multiply
    249,328.32x = 373,979.76 × 91,544.64
  4. Step 4: Simplify right side
    249,328.32x = 34,235,842,496.49
  5. Step 5: Solve for x
    x = 34,235,842,496.49/249,328.32
  6. Step 6: Final answer
    x = 137,312.29

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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.