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Finding the Third Proportional to 99,716,485 and 153,176,729

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Solution

The third proportional to 99,716,485 and 153,176,729 is: 235,298,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,716,485 : 153,176,729 = 153,176,729 : x
  2. Step 2: Convert to fraction form
    99,716,485/153,176,729 = 153,176,729/x
  3. Step 3: Cross multiply
    99,716,485x = 153,176,729 × 153,176,729
  4. Step 4: Simplify right side
    99,716,485x = 23,463,110,307,139,440
  5. Step 5: Solve for x
    x = 23,463,110,307,139,440/99,716,485
  6. Step 6: Final answer
    x = 235,298,208.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.