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Finding the Fourth Proportional to 178,256,777.70, 249,729,549.90 and 178,256,777.70

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Solution

The fourth proportional to 178,256,777.70, 249,729,549.90 and 178,256,777.70 is: 249,729,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,256,777.70 : 249,729,549.90 = 178,256,777.70 : x
  2. Step 2: Convert to fraction form
    178,256,777.70/249,729,549.90 = 178,256,777.70/x
  3. Step 3: Cross multiply
    178,256,777.70x = 249,729,549.90 × 178,256,777.70
  4. Step 4: Simplify right side
    178,256,777.70x = 44,515,984,861,645,352
  5. Step 5: Solve for x
    x = 44,515,984,861,645,352/178,256,777.70
  6. Step 6: Final answer
    x = 249,729,549.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.