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Finding the Fourth Proportional to 74,024,481, 101,971,256.22 and 62,975,844.48

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Solution

The fourth proportional to 74,024,481, 101,971,256.22 and 62,975,844.48 is: 86,751,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,024,481 : 101,971,256.22 = 62,975,844.48 : x
  2. Step 2: Convert to fraction form
    74,024,481/101,971,256.22 = 62,975,844.48/x
  3. Step 3: Cross multiply
    74,024,481x = 101,971,256.22 × 62,975,844.48
  4. Step 4: Simplify right side
    74,024,481x = 6,421,725,973,140,952
  5. Step 5: Solve for x
    x = 6,421,725,973,140,952/74,024,481
  6. Step 6: Final answer
    x = 86,751,381.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.