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Finding the Fourth Proportional to 358,509.04, 537,855.84 and 105,779.32

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Solution

The fourth proportional to 358,509.04, 537,855.84 and 105,779.32 is: 158,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,509.04 : 537,855.84 = 105,779.32 : x
  2. Step 2: Convert to fraction form
    358,509.04/537,855.84 = 105,779.32/x
  3. Step 3: Cross multiply
    358,509.04x = 537,855.84 × 105,779.32
  4. Step 4: Simplify right side
    358,509.04x = 56,894,025,013.23
  5. Step 5: Solve for x
    x = 56,894,025,013.23/358,509.04
  6. Step 6: Final answer
    x = 158,696.21

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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.