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Finding the Fourth Proportional to 52,742,690, 79,473,429 and 43,368,074

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Solution

The fourth proportional to 52,742,690, 79,473,429 and 43,368,074 is: 65,347,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742,690 : 79,473,429 = 43,368,074 : x
  2. Step 2: Convert to fraction form
    52,742,690/79,473,429 = 43,368,074/x
  3. Step 3: Cross multiply
    52,742,690x = 79,473,429 × 43,368,074
  4. Step 4: Simplify right side
    52,742,690x = 3,446,609,549,905,746
  5. Step 5: Solve for x
    x = 3,446,609,549,905,746/52,742,690
  6. Step 6: Final answer
    x = 65,347,625.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.