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Finding the Fourth Proportional to 93,985,515.30, 140,978,079.10 and 53,026,360.93

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Solution

The fourth proportional to 93,985,515.30, 140,978,079.10 and 53,026,360.93 is: 79,539,432.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,985,515.30 : 140,978,079.10 = 53,026,360.93 : x
  2. Step 2: Convert to fraction form
    93,985,515.30/140,978,079.10 = 53,026,360.93/x
  3. Step 3: Cross multiply
    93,985,515.30x = 140,978,079.10 × 53,026,360.93
  4. Step 4: Simplify right side
    93,985,515.30x = 7,475,554,505,574,689
  5. Step 5: Solve for x
    x = 7,475,554,505,574,689/93,985,515.30
  6. Step 6: Final answer
    x = 79,539,432.03

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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.