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Finding the Fourth Proportional to 74,560.10, 102,931.02 and 57,526.07

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Solution

The fourth proportional to 74,560.10, 102,931.02 and 57,526.07 is: 79,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,560.10 : 102,931.02 = 57,526.07 : x
  2. Step 2: Convert to fraction form
    74,560.10/102,931.02 = 57,526.07/x
  3. Step 3: Cross multiply
    74,560.10x = 102,931.02 × 57,526.07
  4. Step 4: Simplify right side
    74,560.10x = 5,921,216,547.04
  5. Step 5: Solve for x
    x = 5,921,216,547.04/74,560.10
  6. Step 6: Final answer
    x = 79,415.36

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1.5x scale

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.