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Finding the Fourth Proportional to 249,076.80, 373,663.80 and 99,291.60

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Solution

The fourth proportional to 249,076.80, 373,663.80 and 99,291.60 is: 148,956.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,076.80 : 373,663.80 = 99,291.60 : x
  2. Step 2: Convert to fraction form
    249,076.80/373,663.80 = 99,291.60/x
  3. Step 3: Cross multiply
    249,076.80x = 373,663.80 × 99,291.60
  4. Step 4: Simplify right side
    249,076.80x = 37,101,676,564.08
  5. Step 5: Solve for x
    x = 37,101,676,564.08/249,076.80
  6. Step 6: Final answer
    x = 148,956.77

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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.