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Finding the Fourth Proportional to 76,737,779.60, 115,106,669.40 and 76,737,779.60

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Solution

The fourth proportional to 76,737,779.60, 115,106,669.40 and 76,737,779.60 is: 115,106,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,737,779.60 : 115,106,669.40 = 76,737,779.60 : x
  2. Step 2: Convert to fraction form
    76,737,779.60/115,106,669.40 = 76,737,779.60/x
  3. Step 3: Cross multiply
    76,737,779.60x = 115,106,669.40 × 76,737,779.60
  4. Step 4: Simplify right side
    76,737,779.60x = 8,833,030,226,907,264
  5. Step 5: Solve for x
    x = 8,833,030,226,907,264/76,737,779.60
  6. Step 6: Final answer
    x = 115,106,669.40

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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.