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Finding the Fourth Proportional to 112,330,938.20, 157,716,809.80 and 112,330,938.20

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Solution

The fourth proportional to 112,330,938.20, 157,716,809.80 and 112,330,938.20 is: 157,716,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,330,938.20 : 157,716,809.80 = 112,330,938.20 : x
  2. Step 2: Convert to fraction form
    112,330,938.20/157,716,809.80 = 112,330,938.20/x
  3. Step 3: Cross multiply
    112,330,938.20x = 157,716,809.80 × 112,330,938.20
  4. Step 4: Simplify right side
    112,330,938.20x = 17,716,477,214,744,956
  5. Step 5: Solve for x
    x = 17,716,477,214,744,956/112,330,938.20
  6. Step 6: Final answer
    x = 157,716,809.80

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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.