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Finding the Fourth Proportional to 112,266,012.30, 156,789,779.70 and 112,266,012.30

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Solution

The fourth proportional to 112,266,012.30, 156,789,779.70 and 112,266,012.30 is: 156,789,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,266,012.30 : 156,789,779.70 = 112,266,012.30 : x
  2. Step 2: Convert to fraction form
    112,266,012.30/156,789,779.70 = 112,266,012.30/x
  3. Step 3: Cross multiply
    112,266,012.30x = 156,789,779.70 × 112,266,012.30
  4. Step 4: Simplify right side
    112,266,012.30x = 17,602,163,336,314,488
  5. Step 5: Solve for x
    x = 17,602,163,336,314,488/112,266,012.30
  6. Step 6: Final answer
    x = 156,789,779.70

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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.