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Finding the Fourth Proportional to 357,715.02, 536,539.70 and 121,030.58

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Solution

The fourth proportional to 357,715.02, 536,539.70 and 121,030.58 is: 181,534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,715.02 : 536,539.70 = 121,030.58 : x
  2. Step 2: Convert to fraction form
    357,715.02/536,539.70 = 121,030.58/x
  3. Step 3: Cross multiply
    357,715.02x = 536,539.70 × 121,030.58
  4. Step 4: Simplify right side
    357,715.02x = 64,937,711,084.03
  5. Step 5: Solve for x
    x = 64,937,711,084.03/357,715.02
  6. Step 6: Final answer
    x = 181,534.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.