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Finding the Fourth Proportional to 308,654,492.67, 425,943,666.48 and 167,525,763.77

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Solution

The fourth proportional to 308,654,492.67, 425,943,666.48 and 167,525,763.77 is: 231,185,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,654,492.67 : 425,943,666.48 = 167,525,763.77 : x
  2. Step 2: Convert to fraction form
    308,654,492.67/425,943,666.48 = 167,525,763.77/x
  3. Step 3: Cross multiply
    308,654,492.67x = 425,943,666.48 × 167,525,763.77
  4. Step 4: Simplify right side
    308,654,492.67x = 71,356,538,050,056,152
  5. Step 5: Solve for x
    x = 71,356,538,050,056,152/308,654,492.67
  6. Step 6: Final answer
    x = 231,185,807.25

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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.