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Finding the Fourth Proportional to 63,161,978.80, 94,742,968.20 and 62,311,673.20

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Solution

The fourth proportional to 63,161,978.80, 94,742,968.20 and 62,311,673.20 is: 93,467,509.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,161,978.80 : 94,742,968.20 = 62,311,673.20 : x
  2. Step 2: Convert to fraction form
    63,161,978.80/94,742,968.20 = 62,311,673.20/x
  3. Step 3: Cross multiply
    63,161,978.80x = 94,742,968.20 × 62,311,673.20
  4. Step 4: Simplify right side
    63,161,978.80x = 5,903,592,872,476,393
  5. Step 5: Solve for x
    x = 5,903,592,872,476,393/63,161,978.80
  6. Step 6: Final answer
    x = 93,467,509.80

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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.